Directions¶

Directions for you, the workshop attendee, will be noted by bold font.

For example:

Click Next to continue.

Code¶

SQL query examples will be displayed in an offset box

SELECT postgis_full_version();

These examples can be entered into the query window or command line interface.

Notes¶

Notes are used to provide information that is useful but not critical to the overall understanding of the topic.

Functions¶

Where function names are defined in the text, they will be rendered in a bold font.

For example:

ST_Touches(geometry A, geometry B) returns TRUE if either of the geometries’ boundaries intersect

Files, Tables and Column Names¶

File names, paths, table names and column names will be shown in fixed-width font.

For example:

Select the name column in the nyc_streets table.

Menus and Form elements¶

Menus/submenus and form elements such as fields or check boxes and other on-screen artifacts are displayed in italics.

For example:

Click on the File > New menu. Check the box that says Confirm.

Workflow¶

Sections are designed to be progressive. Each section will start with the assumption that you have completed and understood the previous section in the series and will build on that knowledge. A single section will progress through a handful of ideas and provide working examples wherever possible. At the end of a section, where appropriate, we have included a handful of exercises to allow you to try out the ideas we’ve presented. In some cases the section will include “Things To Try”. These tasks contain more complex problems than the exercises and is designed to challenge participants with advanced knowledge.